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Continuous High-Precision Positioning in Smartphones by FGO-Based Fusion of GNSS-PPK and PDR. [PDF]
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A new ZTD model based on permanent ground-based GNSS-ZTD data
Survey Review, 2016Tropospheric delay has a major effect on the accuracy of navigation and positioning when using the Global Navigation Satellite System (GNSS). Zenith tropospheric delay (ZTD) modelling has been used to weaken the influence of the atmosphere. The work reported here focused on ZTD modelling based on real-time surface meteorological parameters ...
M. Ding, W. Hu, X. Jin, L. Yu
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Assessing long-term ZTD trends for climate
2023In this presentation we showcase results of an ongoing effort to assess long-term ZTD trends for eventual use in climate models, either for assimilation or validation. We have been analyzing the ZTD time series estimated from six REPRO3 IGS Analysis Centers (ACs), namely, COD, ESA, GFZ, GRG, JPL, TUG, to compare their long-term trends.
Marcelo C. Santos +4 more
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This chapter describes the estimation of zenith tropospheric delay (ZTD) using ANFIS technique followed by obtaining of ZTD data from GPS together with data location of dataset. This chapter also describes the method of analysis used in the development of ZTD estimation model.
Wayan Suparta, Kemal Maulana Alhasa
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Prediction of ZTD Based on ANFIS Model
2015Since the tropospheric delay plays a crucial role in meteorological studies and weather forecasts as well as positioning accuracy, accurate prediction of its value is critical to helping monitoring the ZTD variation on a global basis. In the previous chapter, ZTD has been estimated with a fuzzy inference system that uses a back-propagation algorithm ...
Wayan Suparta, Kemal Maulana Alhasa
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Investigation of shipborne GNSS ZTD retrieval processing parameters by simulation
2022<div> <p><span>The aim of this work is to study the impact of the processing parameterization on the estimation of the zenith total delay (ZTD) from a shipborne GNSS antenna measurement.</span></p> <p><span>For this purpose, we used a simplified ...
Aurélie Panetier +2 more
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